1121317851 has 8 divisors (see below), whose sum is σ = 1573779520. Its totient is φ = 708200712.

The previous prime is 1121317849. The next prime is 1121317937. The reversal of 1121317851 is 1587131211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121317851 - 2¹ = 1121317849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121317801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9836065 + ... + 9836178.

It is an arithmetic number, because the mean of its divisors is an integer number (196722440).

Almost surely, 2^1121317851 is an apocalyptic number.

1121317851 is a deficient number, since it is larger than the sum of its proper divisors (452461669).

1121317851 is a wasteful number, since it uses less digits than its factorization.

1121317851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19672265.

The product of its digits is 1680, while the sum is 30.

The square root of 1121317851 is about 33486.0844381663. The cubic root of 1121317851 is about 1038.9059781904.

The spelling of 1121317851 in words is "one billion, one hundred twenty-one million, three hundred seventeen thousand, eight hundred fifty-one".